GeForm109
GeForm109
Federal Signal Modulator
an Electronic Civil Defense Siren....MFG is Federal Signal...the Model is the Modulator....Note:all except the Bottom Disk are Active modules...the "Dummy" Disk is used to Disperse Sound 360.
Tyler,Tx
Lots of these.....no Mechanical ones have been found.
2,048
views
4
faves
5
comments
Uploaded on March 13, 2010
Taken on February 18, 2010
Federal Signal Modulator
an Electronic Civil Defense Siren....MFG is Federal Signal...the Model is the Modulator....Note:all except the Bottom Disk are Active modules...the "Dummy" Disk is used to Disperse Sound 360.
Tyler,Tx
Lots of these.....no Mechanical ones have been found.
2,048
views
4
faves
5
comments
Uploaded on March 13, 2010
Taken on February 18, 2010